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Founded in 1876, Texas A&M University is a U.S. public and comprehensive university offering a wide variety of academic programs far beyond its original label of agricultural and mechanical trainings. It is one of the few institutions holding triple federal designations as a land-, sea- and ...
In a stratified ocean, a vertical profile may contain regions of static instability. Vertical displacements can be created by reordering the profile to achieve static stability. An RMS value of these displacements within a specific depth range is a length scale called the Thorpe Scale. It can empirically be related to the Ozmidov scale.
Industry:Earth science
In a stratified ocean, the locally averaged change in potential energy produced by vertically rearranging the water column to achieve static stability.
Industry:Earth science
In atmospheric boundary layer dynamics, the height above a surface where the wind speed reaches zero. This is used when surface irregularities are larger than the 1 mm depth of the layer where molecular diffusion dominates and an analogous “turbulent” diffusion depth is needed. It is a constant in expressions used to find the logarithmic velocity profiles in boundary layers, and ranges from about a millimeter for average seas to more than a meter for cities with tall buildings.
Industry:Earth science
In biological oceanography, the loss rate of organic carbon (and nitrogen) from the surface ocean layer to the ocean interior.
Industry:Earth science
In climate modeling this refers to the combination of an atmospheric GCM with some sort of ocean model rather than the simple specification of SSTs as a lower boundary condition. From simple to complex, the ocean model hierarchy used proceeds from swamp ocean models to slab ocean or mixed-layer models to oceanic GCM models.
Industry:Earth science
In climate modeling, this is a problem that results from beginning a model simulation at a point in time when the climate response to natural and anthropogenic forcing that happened before the start of the simulation is already in progress. An example would be specifying 1950 initial conditions for a simulation of the effects of anthropogenic CO2 increases when the CO2 increases although the CO2 increases started in the latter half of the 19th century. This results in a simulation that is missing at least 50 years of the time evolution of the modeled system’s response to increasing atmospheric CO2, which can be vital to the prediction of future states of a system with components that change on time scales greater than 50 years, e.g. the ocean.
Industry:Earth science
In data or signal analysis, a filter that passes frequencies below some cutoff frequency while attenuating higher frequencies.
Industry:Earth science
In data or signal analysis, a function that selectively discriminates against some of the information passing through it. The discrimination is usually performed on the basis of frequency.
Industry:Earth science
In dynamical systems theory, a system is said to be transitive if different sets of initial conditions all evolve to a single resultant state. Compare to intransitive and almost intransitive.
Industry:Earth science
In fluid mechanics, mass diffusion caused by a temperature gradient.
Industry:Earth science
